I have the Honda grip heaters on my ex police st1100 and am considering transfering them onto my recently aquired ST1100 but am not sure about the wiring as these are the genuine honda ones with the large black and red on/off switch and as such are wired into the bike so they go off when ignition is turned off. they came with a wiring diagram but that was 5 years ago lol and not much chance of finding it now in my garage lol. wonder does anybody have a copy they could maybe scan and email to me? these grips are 5 years old but they are still perfect, so would'nt mind hanging on to them Cheers Gareth